Although others in the IndyCar Series and NASCAR have had the opportunity to try becoming the next American Ninja Warrior, few dirt drivers have taken on NBC’s hit obstacle-course competition series. That is, until now.

In this piece we’ll take a look at rulebooks from USAC and the World of Outlaws, as well as a couple smaller racing series, so you have a better idea of what’s permitted and prohibited where engines are concerned.

When the 2019 season began for the World of Outlaws Morton Buildings Late Model Series, there were only a handful of drivers who fans, media and even track officials thought would be the ones to watch this season.